ace mask soft non woven fabrics,breathable and confortable 1.Antivirus,deodorant,filter bacteria,prevent dust and other effects.2.Especially suitable ... containing organic gases,acid volatile compounds,pesticides,SO2,CI2 and other irritant gases occasions,anti-virus,deodorizing effect ... industry,chemical industry,paint shop,leather in dustry and the sanitation units.4.Suitable for construction,quarry, ...